The file was already unblocked.Bro i have done this pitch grass normal 1 dds with CGF.
just make a right click on pitch_grass_normal_1.dds -> than properties -> click on unblock the file.
Than you have to give all the rights to the file (e.g. admin, systeme) -> go to security and give all the rights to all the users.
Than copy the file to CProgram Files (x86)\3dGameDevBlog\CG File Explorer 18\Texture
And start now to import and you´re done my friend
For any missunderstanding just PM me
And no, it was corrupted. Maybe it got corrupted when I downloaded it, but it was corrupted nonetheless.
And OP already sent me a working file. So the problem was solved already. But thanks for the info.